J727t1 network issu after unlok

[yako66]

Hi everyone:
I need help to fix J727t1 bit1 weak 2g signal after unlock procedure with GCpro.
Proc:
Backup cet/ExynosEFS_Reset/write cert backup/SAMSUNG DRK FIX.
Finally the device is unlocked but weak 2g 900mhz signal and serial number=none
B.R.

[stanner_austin]

@yako66
Hello
Official way of J727T do not damage calibration.. way you used is not official.
Sorry there is nothing to help you.
Next time use credits and Tmobile unlock steps posted in http://forum.gsmhosting.com/vbb/f922...tions-1838017/

Buy credits from listed reseller http://forum.gsmhosting.com/vbb/f922...-list-2299732/

[gsm_service4u]

Originally Posted by yako66

Hi everyone:
I need help to fix J727t1 bit1 weak 2g signal after unlock procedure with GCpro.
Proc:
Backup cet/ExynosEFS_Reset/write cert backup/SAMSUNG DRK FIX.
Finally the device is unlocked but weak 2g 900mhz signal and serial number=none
B.R.

Done many phones, never had issue, try flashing J727U firmware or reflash to latest after factory reset

If still same issue, install shortcutmaker apk and find .radioinfo, and set to lte manually

check carrier,sim

if still same, redo unlock, wipe efs rewrite cert fix drk

Originally Posted by stanner_austin

@yako66
Hello
Official way of J727T do not damage calibration.. way you used is not official.
Sorry there is nothing to help you.
Next time use credits and Tmobile unlock steps posted in http://forum.gsmhosting.com/vbb/f922...tions-1838017/

Buy credits from listed reseller http://forum.gsmhosting.com/vbb/f922...-list-2299732/

Done many phones with this method, no issues ever

[yako66]

@gsmservice4u
Hellow gsmservice4u:
Thank you very much.I still have the device.I will do everything you said and post results.
Best regards

[hsoftboy]

Originally Posted by yako66

Hi everyone:
I need help to fix J727t1 bit1 weak 2g signal after unlock procedure with GCpro.
Proc:
Backup cet/ExynosEFS_Reset/write cert backup/SAMSUNG DRK FIX.
Finally the device is unlocked but weak 2g 900mhz signal and serial number=none
B.R.

I had the same issue. I guess that you flashed a j727t modem in bit 3 for make the process. After the unlock process you need to put again the original modem j727t1 and the signal problem will desappear